Phenotypic and genotypic characterization of a marine bacterium isolated from Sundarbans, Bangladesh


  • Ashish Kumar Sarker Department of Pharmacy, Pabna University of Science and Technology, Pabna-6600, Bangladesh Lecturer, Pharmacy Department
  • Anwarul Haque Department of Pharmacy, Pabna University of Science and Technology, Pabna-6600, Bangladesh
  • Mohammad Sayful Islam Department of Pharmacy, University of Rajshahi, Rajshahi-6205, Bangladesh
  • Uzzal Haque Department of Pharmacy, University of Rajshahi, Rajshahi-6205, Bangladesh
  • Netish Kumar Kundo Department of Pharmacy, University of Rajshahi, Rajshahi-6205, Bangladesh
  • Abu Syed Anisuzzaman Department of Pharmacy, University of Rajshahi, Rajshahi-6205, Bangladesh. Department of Hematology & Medical Oncology, Winship Cancer Institute, Emory University, Atlanta, GA 30322, United States
  • Urmi Saha Eastern Medical College and Hospital, Comilla, Bangladesh
  • Anwar Ul Islam Department of Pharmacy, University of Rajshahi, Rajshahi-6205, Bangladesh


Phenotypic, Genotypic, Marine Bacteria, Sundarbans


The mangrove ecosystem is a largely unexplored source for bacteria with potentiality to produce biologically active secondary metabolites. Consequently, we set our research study to isolate, characterize and screen a bacterium producing bioactive compounds from marine soil of largest mangrove forest of the world, Sundarbans, Bangladesh. A total number of 39 marine bacterial colonies were isolated and purified. Representative bioactive isolate, ANAM-5 was characterized using phenotypic and genotypic procedures since it exhihibited highest antibacterial activity against a series of test organisms. The 16S rDNA sequence of the strain ANAM-5 showed close similarity with only one bacterium Planctomyces brasiliensis, complete genome (99.64%). But the cultural, morphological, physiological and biochemical characteristics of the strain and P. brasiliensis were completely different. So, it may not be logical to assign the strain ANAM-5 to the genus Planctomyces. Thus, to confirm the taxonomic position of the strain and to have a correct solution from this taxonomic problem, further studies is needed in respect to the DNA relatedness studies, fatty acid profiling, DNA-DNA hybridization, matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF), metabolic finger profiling using BIOLOG, ribotyping, small subunit (SSU) sequences, cell wall composition and other characterizations.


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How to Cite

Sarker, A. K. ., Haque, A. ., Islam, M. S. ., Haque, U. ., Kundo, N. K. ., Anisuzzaman, A. S. ., Saha, U. ., & Islam, A. U. . (2015). Phenotypic and genotypic characterization of a marine bacterium isolated from Sundarbans, Bangladesh. Scientific Journal of Microbiology, 4(7), 58-69. Retrieved from



Original Article